code and in SoC code). Boards using the old way have CFG_NAND_LEGACY and BOARDLIBS = drivers/nand_legacy/libnand_legacy.a added. Build breakage for NETTA.ERR and NETTA_ISDN - will go away when the new NAND support is implemented for these boards.master
parent
038ccac511
commit
addb2e1650
File diff suppressed because it is too large
Load Diff
@ -1,364 +0,0 @@ |
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#include <common.h> |
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#if (CONFIG_COMMANDS & CFG_CMD_NAND) && defined CONFIG_NEW_NAND_CODE |
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#include <command.h> |
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#include <watchdog.h> |
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#include <malloc.h> |
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#include <asm/byteorder.h> |
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#ifdef CONFIG_SHOW_BOOT_PROGRESS |
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# include <status_led.h> |
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# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg) |
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#else |
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# define SHOW_BOOT_PROGRESS(arg) |
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#endif |
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#include <jffs2/jffs2.h> |
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#include <nand.h> |
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extern nand_info_t nand_info[]; /* info for NAND chips */ |
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static int nand_dump_oob(nand_info_t *nand, ulong off) |
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{ |
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return 0; |
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} |
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static int nand_dump(nand_info_t *nand, ulong off) |
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{ |
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int i; |
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u_char *buf, *p; |
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buf = malloc(nand->oobblock + nand->oobsize); |
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if (!buf) { |
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puts("No memory for page buffer\n"); |
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return 1; |
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} |
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off &= ~(nand->oobblock - 1); |
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i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize); |
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if (i < 0) { |
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printf("Error (%d) reading page %08x\n", i, off); |
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free(buf); |
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return 1; |
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} |
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printf("Page %08x dump:\n", off); |
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i = nand->oobblock >> 4; p = buf; |
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while (i--) { |
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printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x" |
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" %02x %02x %02x %02x %02x %02x %02x %02x\n", |
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], |
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p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]); |
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p += 16; |
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} |
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puts("OOB:\n"); |
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i = nand->oobsize >> 3; |
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while (i--) { |
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printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n", |
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); |
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p += 8; |
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} |
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free(buf); |
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return 0; |
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} |
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/* ------------------------------------------------------------------------- */ |
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static void |
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arg_off_size(int argc, char *argv[], ulong *off, ulong *size, ulong totsize) |
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{ |
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*off = 0; |
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*size = 0; |
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#if defined(CONFIG_JFFS2_NAND) && defined(CFG_JFFS_CUSTOM_PART) |
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if (argc >= 1 && strcmp(argv[0], "partition") == 0) { |
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int part_num; |
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struct part_info *part; |
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const char *partstr; |
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if (argc >= 2) |
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partstr = argv[1]; |
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else |
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partstr = getenv("partition"); |
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if (partstr) |
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part_num = (int)simple_strtoul(partstr, NULL, 10); |
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else |
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part_num = 0; |
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part = jffs2_part_info(part_num); |
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if (part == NULL) { |
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printf("\nInvalid partition %d\n", part_num); |
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return; |
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} |
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*size = part->size; |
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*off = (ulong)part->offset; |
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} else |
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#endif |
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{ |
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if (argc >= 1) |
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*off = (ulong)simple_strtoul(argv[0], NULL, 16); |
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else |
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*off = 0; |
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if (argc >= 2) |
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*size = (ulong)simple_strtoul(argv[1], NULL, 16); |
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else |
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*size = totsize - *off; |
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} |
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} |
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int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
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{ |
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int i, dev, ret; |
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ulong addr, off, size; |
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char *cmd, *s; |
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nand_info_t *nand; |
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/* at least two arguments please */ |
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if (argc < 2) |
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goto usage; |
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cmd = argv[1]; |
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if (strcmp(cmd, "info") == 0) { |
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putc('\n'); |
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for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) { |
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if (nand_info[i].name) |
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printf("Device %d: %s\n", i, nand_info[i].name); |
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} |
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return 0; |
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} |
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if (strcmp(cmd, "device") == 0) { |
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if (argc < 3) { |
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if ((nand_curr_device < 0) || |
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(nand_curr_device >= CFG_MAX_NAND_DEVICE)) |
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puts("\nno devices available\n"); |
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else |
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printf("\nDevice %d: %s\n", nand_curr_device, |
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nand_info[nand_curr_device].name); |
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return 0; |
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} |
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dev = (int)simple_strtoul(argv[2], NULL, 10); |
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if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) { |
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puts("No such device\n"); |
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return 1; |
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} |
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printf("Device %d: %s", dev, nand_info[dev].name); |
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puts("... is now current device\n"); |
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nand_curr_device = dev; |
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return 0; |
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} |
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if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 && |
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strncmp(cmd, "dump", 4) != 0 && |
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strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0) |
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goto usage; |
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/* the following commands operate on the current device */ |
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if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE || |
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!nand_info[nand_curr_device].name) { |
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puts("\nno devices available\n"); |
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return 1; |
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} |
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nand = &nand_info[nand_curr_device]; |
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if (strcmp(cmd, "bad") == 0) { |
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printf("\nDevice %d bad blocks:\n", nand_curr_device); |
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for (off = 0; off < nand->size; off += nand->erasesize) |
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if (nand_block_isbad(nand, off)) |
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printf(" %08x\n", off); |
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return 0; |
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} |
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if (strcmp(cmd, "erase") == 0) { |
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arg_off_size(argc - 2, argv + 2, &off, &size, nand->size); |
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if (off == 0 && size == 0) |
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return 1; |
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printf("\nNAND erase: device %d offset 0x%x, size 0x%x ", |
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nand_curr_device, off, size); |
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ret = nand_erase(nand, off, size); |
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printf("%s\n", ret ? "ERROR" : "OK"); |
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return ret == 0 ? 0 : 1; |
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} |
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if (strncmp(cmd, "dump", 4) == 0) { |
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if (argc < 3) |
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goto usage; |
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s = strchr(cmd, '.'); |
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off = (int)simple_strtoul(argv[2], NULL, 16); |
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if (s != NULL && strcmp(s, ".oob") == 0) |
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ret = nand_dump_oob(nand, off); |
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else |
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ret = nand_dump(nand, off); |
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return ret == 0 ? 1 : 0; |
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} |
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/* read write */ |
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if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { |
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if (argc < 4) |
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goto usage; |
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/*
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s = strchr(cmd, '.'); |
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clean = CLEAN_NONE; |
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if (s != NULL) { |
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if (strcmp(s, ".jffs2") == 0 || strcmp(s, ".e") == 0 |
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|| strcmp(s, ".i")) |
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clean = CLEAN_JFFS2; |
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} |
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*/ |
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addr = (ulong)simple_strtoul(argv[2], NULL, 16); |
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arg_off_size(argc - 3, argv + 3, &off, &size, nand->size); |
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if (off == 0 && size == 0) |
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return 1; |
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i = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ |
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printf("\nNAND %s: device %d offset %u, size %u ... ", |
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i ? "read" : "write", nand_curr_device, off, size); |
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if (i) |
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ret = nand_read(nand, off, &size, (u_char *)addr); |
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else |
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ret = nand_write(nand, off, &size, (u_char *)addr); |
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printf(" %d bytes %s: %s\n", size, |
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i ? "read" : "written", ret ? "ERROR" : "OK"); |
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return ret == 0 ? 0 : 1; |
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} |
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usage: |
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printf("Usage:\n%s\n", cmdtp->usage); |
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return 1; |
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} |
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U_BOOT_CMD(nand, 5, 1, do_nand, |
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"nand - NAND sub-system\n", |
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"info - show available NAND devices\n" |
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"nand device [dev] - show or set current device\n" |
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"nand read[.jffs2] - addr off size\n" |
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"nand write[.jffs2] - addr off size - read/write `size' bytes starting\n" |
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" at offset `off' to/from memory address `addr'\n" |
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"nand erase [clean] [off size] - erase `size' bytes from\n" |
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" offset `off' (entire device if not specified)\n" |
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"nand bad - show bad blocks\n" |
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"nand dump[.oob] off - dump page\n" |
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"nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n" |
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"nand markbad off - mark bad block at offset (UNSAFE)\n" |
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"nand biterr off - make a bit error at offset (UNSAFE)\n"); |
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int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
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{ |
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char *boot_device = NULL; |
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char *ep; |
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int dev; |
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int r; |
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ulong addr, cnt, offset = 0; |
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image_header_t *hdr; |
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nand_info_t *nand; |
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switch (argc) { |
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case 1: |
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addr = CFG_LOAD_ADDR; |
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boot_device = getenv("bootdevice"); |
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break; |
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case 2: |
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addr = simple_strtoul(argv[1], NULL, 16); |
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boot_device = getenv("bootdevice"); |
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break; |
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case 3: |
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addr = simple_strtoul(argv[1], NULL, 16); |
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boot_device = argv[2]; |
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break; |
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case 4: |
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addr = simple_strtoul(argv[1], NULL, 16); |
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boot_device = argv[2]; |
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offset = simple_strtoul(argv[3], NULL, 16); |
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break; |
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default: |
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printf("Usage:\n%s\n", cmdtp->usage); |
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SHOW_BOOT_PROGRESS(-1); |
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return 1; |
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} |
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if (!boot_device) { |
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puts("\n** No boot device **\n"); |
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SHOW_BOOT_PROGRESS(-1); |
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return 1; |
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} |
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dev = simple_strtoul(boot_device, &ep, 16); |
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if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) { |
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printf("\n** Device %d not available\n", dev); |
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SHOW_BOOT_PROGRESS(-1); |
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return 1; |
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} |
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nand = &nand_info[dev]; |
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printf("\nLoading from device %d: %s (offset 0x%lx)\n", |
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dev, nand->name, offset); |
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cnt = nand->oobblock; |
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r = nand_read(nand, offset, &cnt, (u_char *) addr); |
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if (r) { |
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printf("** Read error on %d\n", dev); |
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SHOW_BOOT_PROGRESS(-1); |
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return 1; |
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} |
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hdr = (image_header_t *) addr; |
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if (ntohl(hdr->ih_magic) != IH_MAGIC) { |
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printf("\n** Bad Magic Number 0x%x **\n", hdr->ih_magic); |
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SHOW_BOOT_PROGRESS(-1); |
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return 1; |
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} |
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print_image_hdr(hdr); |
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cnt = (ntohl(hdr->ih_size) + sizeof (image_header_t)); |
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r = nand_read(nand, offset, &cnt, (u_char *) addr); |
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if (r) { |
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printf("** Read error on %d\n", dev); |
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SHOW_BOOT_PROGRESS(-1); |
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return 1; |
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} |
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/* Loading ok, update default load address */ |
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load_addr = addr; |
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/* Check if we should attempt an auto-start */ |
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if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) { |
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char *local_args[2]; |
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extern int do_bootm(cmd_tbl_t *, int, int, char *[]); |
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local_args[0] = argv[0]; |
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local_args[1] = NULL; |
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printf("Automatic boot of image at addr 0x%08lx ...\n", addr); |
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do_bootm(cmdtp, 0, 1, local_args); |
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return 1; |
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} |
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return 0; |
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} |
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U_BOOT_CMD(nboot, 4, 1, do_nandboot, |
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"nboot - boot from NAND device\n", "loadAddr dev\n"); |
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#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */ |
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@ -0,0 +1,16 @@ |
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include $(TOPDIR)/config.mk |
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LIB := libnand_legacy.a
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OBJS := nand_legacy.o
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all: $(LIB) |
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$(LIB): $(OBJS) |
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$(AR) crv $@ $(OBJS)
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#########################################################################
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.depend: Makefile $(OBJS:.o=.c) |
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$(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
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sinclude .depend |
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,203 @@ |
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/*
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* linux/include/linux/mtd/nand.h |
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* |
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* Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com> |
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* Steven J. Hill <sjhill@cotw.com> |
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* Thomas Gleixner <gleixner@autronix.de> |
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* |
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* $Id: nand.h,v 1.7 2003/07/24 23:30:46 a0384864 Exp $ |
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* |
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* This program is free software; you can redistribute it and/or modify |
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|
* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* Info: |
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* Contains standard defines and IDs for NAND flash devices |
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* |
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* Changelog: |
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* 01-31-2000 DMW Created |
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* 09-18-2000 SJH Moved structure out of the Disk-On-Chip drivers |
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* so it can be used by other NAND flash device |
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* drivers. I also changed the copyright since none |
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* of the original contents of this file are specific |
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* to DoC devices. David can whack me with a baseball |
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* bat later if I did something naughty. |
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* 10-11-2000 SJH Added private NAND flash structure for driver |
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|
* 10-24-2000 SJH Added prototype for 'nand_scan' function |
||||||
|
* 10-29-2001 TG changed nand_chip structure to support |
||||||
|
* hardwarespecific function for accessing control lines |
||||||
|
* 02-21-2002 TG added support for different read/write adress and |
||||||
|
* ready/busy line access function |
||||||
|
* 02-26-2002 TG added chip_delay to nand_chip structure to optimize |
||||||
|
* command delay times for different chips |
||||||
|
* 04-28-2002 TG OOB config defines moved from nand.c to avoid duplicate |
||||||
|
* defines in jffs2/wbuf.c |
||||||
|
*/ |
||||||
|
#ifndef __LINUX_MTD_NAND_LEGACY_H |
||||||
|
#define __LINUX_MTD_NAND_LEGACY_H |
||||||
|
|
||||||
|
#ifndef CFG_NAND_LEGACY |
||||||
|
#error This module is for the legacy NAND support |
||||||
|
#endif |
||||||
|
|
||||||
|
/*
|
||||||
|
* Standard NAND flash commands |
||||||
|
*/ |
||||||
|
#define NAND_CMD_READ0 0 |
||||||
|
#define NAND_CMD_READ1 1 |
||||||
|
#define NAND_CMD_PAGEPROG 0x10 |
||||||
|
#define NAND_CMD_READOOB 0x50 |
||||||
|
#define NAND_CMD_ERASE1 0x60 |
||||||
|
#define NAND_CMD_STATUS 0x70 |
||||||
|
#define NAND_CMD_SEQIN 0x80 |
||||||
|
#define NAND_CMD_READID 0x90 |
||||||
|
#define NAND_CMD_ERASE2 0xd0 |
||||||
|
#define NAND_CMD_RESET 0xff |
||||||
|
|
||||||
|
/*
|
||||||
|
* Enumeration for NAND flash chip state |
||||||
|
*/ |
||||||
|
typedef enum { |
||||||
|
FL_READY, |
||||||
|
FL_READING, |
||||||
|
FL_WRITING, |
||||||
|
FL_ERASING, |
||||||
|
FL_SYNCING |
||||||
|
} nand_state_t; |
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* NAND Private Flash Chip Data |
||||||
|
* |
||||||
|
* Structure overview: |
||||||
|
* |
||||||
|
* IO_ADDR - address to access the 8 I/O lines of the flash device |
||||||
|
* |
||||||
|
* hwcontrol - hardwarespecific function for accesing control-lines |
||||||
|
* |
||||||
|
* dev_ready - hardwarespecific function for accesing device ready/busy line |
||||||
|
* |
||||||
|
* chip_lock - spinlock used to protect access to this structure |
||||||
|
* |
||||||
|
* wq - wait queue to sleep on if a NAND operation is in progress |
||||||
|
* |
||||||
|
* state - give the current state of the NAND device |
||||||
|
* |
||||||
|
* page_shift - number of address bits in a page (column address bits) |
||||||
|
* |
||||||
|
* data_buf - data buffer passed to/from MTD user modules |
||||||
|
* |
||||||
|
* data_cache - data cache for redundant page access and shadow for |
||||||
|
* ECC failure |
||||||
|
* |
||||||
|
* ecc_code_buf - used only for holding calculated or read ECCs for |
||||||
|
* a page read or written when ECC is in use |
||||||
|
* |
||||||
|
* reserved - padding to make structure fall on word boundary if |
||||||
|
* when ECC is in use |
||||||
|
*/ |
||||||
|
struct Nand { |
||||||
|
char floor, chip; |
||||||
|
unsigned long curadr; |
||||||
|
unsigned char curmode; |
||||||
|
/* Also some erase/write/pipeline info when we get that far */ |
||||||
|
}; |
||||||
|
|
||||||
|
struct nand_chip { |
||||||
|
int page_shift; |
||||||
|
u_char *data_buf; |
||||||
|
u_char *data_cache; |
||||||
|
int cache_page; |
||||||
|
u_char ecc_code_buf[6]; |
||||||
|
u_char reserved[2]; |
||||||
|
char ChipID; /* Type of DiskOnChip */ |
||||||
|
struct Nand *chips; |
||||||
|
int chipshift; |
||||||
|
char* chips_name; |
||||||
|
unsigned long erasesize; |
||||||
|
unsigned long mfr; /* Flash IDs - only one type of flash per device */ |
||||||
|
unsigned long id; |
||||||
|
char* name; |
||||||
|
int numchips; |
||||||
|
char page256; |
||||||
|
char pageadrlen; |
||||||
|
unsigned long IO_ADDR; /* address to access the 8 I/O lines to the flash device */ |
||||||
|
unsigned long totlen; |
||||||
|
uint oobblock; /* Size of OOB blocks (e.g. 512) */ |
||||||
|
uint oobsize; /* Amount of OOB data per block (e.g. 16) */ |
||||||
|
uint eccsize; |
||||||
|
int bus16; |
||||||
|
}; |
||||||
|
|
||||||
|
/*
|
||||||
|
* NAND Flash Manufacturer ID Codes |
||||||
|
*/ |
||||||
|
#define NAND_MFR_TOSHIBA 0x98 |
||||||
|
#define NAND_MFR_SAMSUNG 0xec |
||||||
|
|
||||||
|
/*
|
||||||
|
* NAND Flash Device ID Structure |
||||||
|
* |
||||||
|
* Structure overview: |
||||||
|
* |
||||||
|
* name - Complete name of device |
||||||
|
* |
||||||
|
* manufacture_id - manufacturer ID code of device. |
||||||
|
* |
||||||
|
* model_id - model ID code of device. |
||||||
|
* |
||||||
|
* chipshift - total number of address bits for the device which |
||||||
|
* is used to calculate address offsets and the total |
||||||
|
* number of bytes the device is capable of. |
||||||
|
* |
||||||
|
* page256 - denotes if flash device has 256 byte pages or not. |
||||||
|
* |
||||||
|
* pageadrlen - number of bytes minus one needed to hold the |
||||||
|
* complete address into the flash array. Keep in |
||||||
|
* mind that when a read or write is done to a |
||||||
|
* specific address, the address is input serially |
||||||
|
* 8 bits at a time. This structure member is used |
||||||
|
* by the read/write routines as a loop index for |
||||||
|
* shifting the address out 8 bits at a time. |
||||||
|
* |
||||||
|
* erasesize - size of an erase block in the flash device. |
||||||
|
*/ |
||||||
|
struct nand_flash_dev { |
||||||
|
char * name; |
||||||
|
int manufacture_id; |
||||||
|
int model_id; |
||||||
|
int chipshift; |
||||||
|
char page256; |
||||||
|
char pageadrlen; |
||||||
|
unsigned long erasesize; |
||||||
|
int bus16; |
||||||
|
}; |
||||||
|
|
||||||
|
/*
|
||||||
|
* Constants for oob configuration |
||||||
|
*/ |
||||||
|
#define NAND_NOOB_ECCPOS0 0 |
||||||
|
#define NAND_NOOB_ECCPOS1 1 |
||||||
|
#define NAND_NOOB_ECCPOS2 2 |
||||||
|
#define NAND_NOOB_ECCPOS3 3 |
||||||
|
#define NAND_NOOB_ECCPOS4 6 |
||||||
|
#define NAND_NOOB_ECCPOS5 7 |
||||||
|
#define NAND_NOOB_BADBPOS -1 |
||||||
|
#define NAND_NOOB_ECCVPOS -1 |
||||||
|
|
||||||
|
#define NAND_JFFS2_OOB_ECCPOS0 0 |
||||||
|
#define NAND_JFFS2_OOB_ECCPOS1 1 |
||||||
|
#define NAND_JFFS2_OOB_ECCPOS2 2 |
||||||
|
#define NAND_JFFS2_OOB_ECCPOS3 3 |
||||||
|
#define NAND_JFFS2_OOB_ECCPOS4 6 |
||||||
|
#define NAND_JFFS2_OOB_ECCPOS5 7 |
||||||
|
#define NAND_JFFS2_OOB_BADBPOS 5 |
||||||
|
#define NAND_JFFS2_OOB_ECCVPOS 4 |
||||||
|
|
||||||
|
#define NAND_JFFS2_OOB8_FSDAPOS 6 |
||||||
|
#define NAND_JFFS2_OOB16_FSDAPOS 8 |
||||||
|
#define NAND_JFFS2_OOB8_FSDALEN 2 |
||||||
|
#define NAND_JFFS2_OOB16_FSDALEN 8 |
||||||
|
|
||||||
|
unsigned long nand_probe(unsigned long physadr); |
||||||
|
#endif /* __LINUX_MTD_NAND_LEGACY_H */ |
@ -1,469 +0,0 @@ |
|||||||
/*
|
|
||||||
* linux/include/linux/mtd/nand.h |
|
||||||
* |
|
||||||
* Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com> |
|
||||||
* Steven J. Hill <sjhill@realitydiluted.com> |
|
||||||
* Thomas Gleixner <tglx@linutronix.de> |
|
||||||
* |
|
||||||
* $Id: nand.h,v 1.68 2004/11/12 10:40:37 gleixner Exp $ |
|
||||||
* |
|
||||||
* This program is free software; you can redistribute it and/or modify |
|
||||||
* it under the terms of the GNU General Public License version 2 as |
|
||||||
* published by the Free Software Foundation. |
|
||||||
* |
|
||||||
* Info: |
|
||||||
* Contains standard defines and IDs for NAND flash devices |
|
||||||
* |
|
||||||
* Changelog: |
|
||||||
* 01-31-2000 DMW Created |
|
||||||
* 09-18-2000 SJH Moved structure out of the Disk-On-Chip drivers |
|
||||||
* so it can be used by other NAND flash device |
|
||||||
* drivers. I also changed the copyright since none |
|
||||||
* of the original contents of this file are specific |
|
||||||
* to DoC devices. David can whack me with a baseball |
|
||||||
* bat later if I did something naughty. |
|
||||||
* 10-11-2000 SJH Added private NAND flash structure for driver |
|
||||||
* 10-24-2000 SJH Added prototype for 'nand_scan' function |
|
||||||
* 10-29-2001 TG changed nand_chip structure to support |
|
||||||
* hardwarespecific function for accessing control lines |
|
||||||
* 02-21-2002 TG added support for different read/write adress and |
|
||||||
* ready/busy line access function |
|
||||||
* 02-26-2002 TG added chip_delay to nand_chip structure to optimize |
|
||||||
* command delay times for different chips |
|
||||||
* 04-28-2002 TG OOB config defines moved from nand.c to avoid duplicate |
|
||||||
* defines in jffs2/wbuf.c |
|
||||||
* 08-07-2002 TG forced bad block location to byte 5 of OOB, even if |
|
||||||
* CONFIG_MTD_NAND_ECC_JFFS2 is not set |
|
||||||
* 08-10-2002 TG extensions to nand_chip structure to support HW-ECC |
|
||||||
* |
|
||||||
* 08-29-2002 tglx nand_chip structure: data_poi for selecting |
|
||||||
* internal / fs-driver buffer |
|
||||||
* support for 6byte/512byte hardware ECC |
|
||||||
* read_ecc, write_ecc extended for different oob-layout |
|
||||||
* oob layout selections: NAND_NONE_OOB, NAND_JFFS2_OOB, |
|
||||||
* NAND_YAFFS_OOB |
|
||||||
* 11-25-2002 tglx Added Manufacturer code FUJITSU, NATIONAL |
|
||||||
* Split manufacturer and device ID structures |
|
||||||
* |
|
||||||
* 02-08-2004 tglx added option field to nand structure for chip anomalities |
|
||||||
* 05-25-2004 tglx added bad block table support, ST-MICRO manufacturer id |
|
||||||
* update of nand_chip structure description |
|
||||||
*/ |
|
||||||
#ifndef __LINUX_MTD_NAND_NEW_H |
|
||||||
#define __LINUX_MTD_NAND_NEW_H |
|
||||||
|
|
||||||
#include <linux/mtd/compat.h> |
|
||||||
#include <linux/mtd/mtd.h> |
|
||||||
|
|
||||||
struct mtd_info; |
|
||||||
/* Scan and identify a NAND device */ |
|
||||||
extern int nand_scan (struct mtd_info *mtd, int max_chips); |
|
||||||
/* Free resources held by the NAND device */ |
|
||||||
extern void nand_release (struct mtd_info *mtd); |
|
||||||
|
|
||||||
/* Read raw data from the device without ECC */ |
|
||||||
extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen); |
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/* This constant declares the max. oobsize / page, which
|
|
||||||
* is supported now. If you add a chip with bigger oobsize/page |
|
||||||
* adjust this accordingly. |
|
||||||
*/ |
|
||||||
#define NAND_MAX_OOBSIZE 64 |
|
||||||
|
|
||||||
/*
|
|
||||||
* Constants for hardware specific CLE/ALE/NCE function |
|
||||||
*/ |
|
||||||
/* Select the chip by setting nCE to low */ |
|
||||||
#define NAND_CTL_SETNCE 1 |
|
||||||
/* Deselect the chip by setting nCE to high */ |
|
||||||
#define NAND_CTL_CLRNCE 2 |
|
||||||
/* Select the command latch by setting CLE to high */ |
|
||||||
#define NAND_CTL_SETCLE 3 |
|
||||||
/* Deselect the command latch by setting CLE to low */ |
|
||||||
#define NAND_CTL_CLRCLE 4 |
|
||||||
/* Select the address latch by setting ALE to high */ |
|
||||||
#define NAND_CTL_SETALE 5 |
|
||||||
/* Deselect the address latch by setting ALE to low */ |
|
||||||
#define NAND_CTL_CLRALE 6 |
|
||||||
/* Set write protection by setting WP to high. Not used! */ |
|
||||||
#define NAND_CTL_SETWP 7 |
|
||||||
/* Clear write protection by setting WP to low. Not used! */ |
|
||||||
#define NAND_CTL_CLRWP 8 |
|
||||||
|
|
||||||
/*
|
|
||||||
* Standard NAND flash commands |
|
||||||
*/ |
|
||||||
#define NAND_CMD_READ0 0 |
|
||||||
#define NAND_CMD_READ1 1 |
|
||||||
#define NAND_CMD_PAGEPROG 0x10 |
|
||||||
#define NAND_CMD_READOOB 0x50 |
|
||||||
#define NAND_CMD_ERASE1 0x60 |
|
||||||
#define NAND_CMD_STATUS 0x70 |
|
||||||
#define NAND_CMD_STATUS_MULTI 0x71 |
|
||||||
#define NAND_CMD_SEQIN 0x80 |
|
||||||
#define NAND_CMD_READID 0x90 |
|
||||||
#define NAND_CMD_ERASE2 0xd0 |
|
||||||
#define NAND_CMD_RESET 0xff |
|
||||||
|
|
||||||
/* Extended commands for large page devices */ |
|
||||||
#define NAND_CMD_READSTART 0x30 |
|
||||||
#define NAND_CMD_CACHEDPROG 0x15 |
|
||||||
|
|
||||||
/* Status bits */ |
|
||||||
#define NAND_STATUS_FAIL 0x01 |
|
||||||
#define NAND_STATUS_FAIL_N1 0x02 |
|
||||||
#define NAND_STATUS_TRUE_READY 0x20 |
|
||||||
#define NAND_STATUS_READY 0x40 |
|
||||||
#define NAND_STATUS_WP 0x80 |
|
||||||
|
|
||||||
/*
|
|
||||||
* Constants for ECC_MODES |
|
||||||
*/ |
|
||||||
|
|
||||||
/* No ECC. Usage is not recommended ! */ |
|
||||||
#define NAND_ECC_NONE 0 |
|
||||||
/* Software ECC 3 byte ECC per 256 Byte data */ |
|
||||||
#define NAND_ECC_SOFT 1 |
|
||||||
/* Hardware ECC 3 byte ECC per 256 Byte data */ |
|
||||||
#define NAND_ECC_HW3_256 2 |
|
||||||
/* Hardware ECC 3 byte ECC per 512 Byte data */ |
|
||||||
#define NAND_ECC_HW3_512 3 |
|
||||||
/* Hardware ECC 3 byte ECC per 512 Byte data */ |
|
||||||
#define NAND_ECC_HW6_512 4 |
|
||||||
/* Hardware ECC 8 byte ECC per 512 Byte data */ |
|
||||||
#define NAND_ECC_HW8_512 6 |
|
||||||
/* Hardware ECC 12 byte ECC per 2048 Byte data */ |
|
||||||
#define NAND_ECC_HW12_2048 7 |
|
||||||
|
|
||||||
/*
|
|
||||||
* Constants for Hardware ECC |
|
||||||
*/ |
|
||||||
/* Reset Hardware ECC for read */ |
|
||||||
#define NAND_ECC_READ 0 |
|
||||||
/* Reset Hardware ECC for write */ |
|
||||||
#define NAND_ECC_WRITE 1 |
|
||||||
/* Enable Hardware ECC before syndrom is read back from flash */ |
|
||||||
#define NAND_ECC_READSYN 2 |
|
||||||
|
|
||||||
/* Option constants for bizarre disfunctionality and real
|
|
||||||
* features |
|
||||||
*/ |
|
||||||
/* Chip can not auto increment pages */ |
|
||||||
#define NAND_NO_AUTOINCR 0x00000001 |
|
||||||
/* Buswitdh is 16 bit */ |
|
||||||
#define NAND_BUSWIDTH_16 0x00000002 |
|
||||||
/* Device supports partial programming without padding */ |
|
||||||
#define NAND_NO_PADDING 0x00000004 |
|
||||||
/* Chip has cache program function */ |
|
||||||
#define NAND_CACHEPRG 0x00000008 |
|
||||||
/* Chip has copy back function */ |
|
||||||
#define NAND_COPYBACK 0x00000010 |
|
||||||
/* AND Chip which has 4 banks and a confusing page / block
|
|
||||||
* assignment. See Renesas datasheet for further information */ |
|
||||||
#define NAND_IS_AND 0x00000020 |
|
||||||
/* Chip has a array of 4 pages which can be read without
|
|
||||||
* additional ready /busy waits */ |
|
||||||
#define NAND_4PAGE_ARRAY 0x00000040 |
|
||||||
|
|
||||||
/* Options valid for Samsung large page devices */ |
|
||||||
#define NAND_SAMSUNG_LP_OPTIONS \ |
|
||||||
(NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK) |
|
||||||
|
|
||||||
/* Macros to identify the above */ |
|
||||||
#define NAND_CANAUTOINCR(chip) (!(chip->options & NAND_NO_AUTOINCR)) |
|
||||||
#define NAND_MUST_PAD(chip) (!(chip->options & NAND_NO_PADDING)) |
|
||||||
#define NAND_HAS_CACHEPROG(chip) ((chip->options & NAND_CACHEPRG)) |
|
||||||
#define NAND_HAS_COPYBACK(chip) ((chip->options & NAND_COPYBACK)) |
|
||||||
|
|
||||||
/* Mask to zero out the chip options, which come from the id table */ |
|
||||||
#define NAND_CHIPOPTIONS_MSK (0x0000ffff & ~NAND_NO_AUTOINCR) |
|
||||||
|
|
||||||
/* Non chip related options */ |
|
||||||
/* Use a flash based bad block table. This option is passed to the
|
|
||||||
* default bad block table function. */ |
|
||||||
#define NAND_USE_FLASH_BBT 0x00010000 |
|
||||||
/* The hw ecc generator provides a syndrome instead a ecc value on read
|
|
||||||
* This can only work if we have the ecc bytes directly behind the |
|
||||||
* data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */ |
|
||||||
#define NAND_HWECC_SYNDROME 0x00020000 |
|
||||||
|
|
||||||
|
|
||||||
/* Options set by nand scan */ |
|
||||||
/* Nand scan has allocated oob_buf */ |
|
||||||
#define NAND_OOBBUF_ALLOC 0x40000000 |
|
||||||
/* Nand scan has allocated data_buf */ |
|
||||||
#define NAND_DATABUF_ALLOC 0x80000000 |
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* nand_state_t - chip states |
|
||||||
* Enumeration for NAND flash chip state |
|
||||||
*/ |
|
||||||
typedef enum { |
|
||||||
FL_READY, |
|
||||||
FL_READING, |
|
||||||
FL_WRITING, |
|
||||||
FL_ERASING, |
|
||||||
FL_SYNCING, |
|
||||||
FL_CACHEDPRG, |
|
||||||
} nand_state_t; |
|
||||||
|
|
||||||
/* Keep gcc happy */ |
|
||||||
struct nand_chip; |
|
||||||
|
|
||||||
#if 0 |
|
||||||
/**
|
|
||||||
* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independend devices |
|
||||||
* @lock: protection lock |
|
||||||
* @active: the mtd device which holds the controller currently |
|
||||||
*/ |
|
||||||
struct nand_hw_control { |
|
||||||
spinlock_t lock; |
|
||||||
struct nand_chip *active; |
|
||||||
}; |
|
||||||
#endif |
|
||||||
|
|
||||||
/**
|
|
||||||
* struct nand_chip - NAND Private Flash Chip Data |
|
||||||
* @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the flash device |
|
||||||
* @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the flash device |
|
||||||
* @read_byte: [REPLACEABLE] read one byte from the chip |
|
||||||
* @write_byte: [REPLACEABLE] write one byte to the chip |
|
||||||
* @read_word: [REPLACEABLE] read one word from the chip |
|
||||||
* @write_word: [REPLACEABLE] write one word to the chip |
|
||||||
* @write_buf: [REPLACEABLE] write data from the buffer to the chip |
|
||||||
* @read_buf: [REPLACEABLE] read data from the chip into the buffer |
|
||||||
* @verify_buf: [REPLACEABLE] verify buffer contents against the chip data |
|
||||||
* @select_chip: [REPLACEABLE] select chip nr |
|
||||||
* @block_bad: [REPLACEABLE] check, if the block is bad |
|
||||||
* @block_markbad: [REPLACEABLE] mark the block bad |
|
||||||
* @hwcontrol: [BOARDSPECIFIC] hardwarespecific function for accesing control-lines |
|
||||||
* @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing device ready/busy line |
|
||||||
* If set to NULL no access to ready/busy is available and the ready/busy information |
|
||||||
* is read from the chip status register |
|
||||||
* @cmdfunc: [REPLACEABLE] hardwarespecific function for writing commands to the chip |
|
||||||
* @waitfunc: [REPLACEABLE] hardwarespecific function for wait on ready |
|
||||||
* @calculate_ecc: [REPLACEABLE] function for ecc calculation or readback from ecc hardware |
|
||||||
* @correct_data: [REPLACEABLE] function for ecc correction, matching to ecc generator (sw/hw) |
|
||||||
* @enable_hwecc: [BOARDSPECIFIC] function to enable (reset) hardware ecc generator. Must only |
|
||||||
* be provided if a hardware ECC is available |
|
||||||
* @erase_cmd: [INTERN] erase command write function, selectable due to AND support |
|
||||||
* @scan_bbt: [REPLACEABLE] function to scan bad block table |
|
||||||
* @eccmode: [BOARDSPECIFIC] mode of ecc, see defines |
|
||||||
* @eccsize: [INTERN] databytes used per ecc-calculation |
|
||||||
* @eccbytes: [INTERN] number of ecc bytes per ecc-calculation step |
|
||||||
* @eccsteps: [INTERN] number of ecc calculation steps per page |
|
||||||
* @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR) |
|
||||||
* @chip_lock: [INTERN] spinlock used to protect access to this structure and the chip |
|
||||||
* @wq: [INTERN] wait queue to sleep on if a NAND operation is in progress |
|
||||||
* @state: [INTERN] the current state of the NAND device |
|
||||||
* @page_shift: [INTERN] number of address bits in a page (column address bits) |
|
||||||
* @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock |
|
||||||
* @bbt_erase_shift: [INTERN] number of address bits in a bbt entry |
|
||||||
* @chip_shift: [INTERN] number of address bits in one chip |
|
||||||
* @data_buf: [INTERN] internal buffer for one page + oob |
|
||||||
* @oob_buf: [INTERN] oob buffer for one eraseblock |
|
||||||
* @oobdirty: [INTERN] indicates that oob_buf must be reinitialized |
|
||||||
* @data_poi: [INTERN] pointer to a data buffer |
|
||||||
* @options: [BOARDSPECIFIC] various chip options. They can partly be set to inform nand_scan about |
|
||||||
* special functionality. See the defines for further explanation |
|
||||||
* @badblockpos: [INTERN] position of the bad block marker in the oob area |
|
||||||
* @numchips: [INTERN] number of physical chips |
|
||||||
* @chipsize: [INTERN] the size of one chip for multichip arrays |
|
||||||
* @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 |
|
||||||
* @pagebuf: [INTERN] holds the pagenumber which is currently in data_buf |
|
||||||
* @autooob: [REPLACEABLE] the default (auto)placement scheme |
|
||||||
* @bbt: [INTERN] bad block table pointer |
|
||||||
* @bbt_td: [REPLACEABLE] bad block table descriptor for flash lookup |
|
||||||
* @bbt_md: [REPLACEABLE] bad block table mirror descriptor |
|
||||||
* @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial bad block scan |
|
||||||
* @controller: [OPTIONAL] a pointer to a hardware controller structure which is shared among multiple independend devices |
|
||||||
* @priv: [OPTIONAL] pointer to private chip date |
|
||||||
*/ |
|
||||||
|
|
||||||
struct nand_chip { |
|
||||||
void __iomem *IO_ADDR_R; |
|
||||||
void __iomem *IO_ADDR_W; |
|
||||||
|
|
||||||
u_char (*read_byte)(struct mtd_info *mtd); |
|
||||||
void (*write_byte)(struct mtd_info *mtd, u_char byte); |
|
||||||
u16 (*read_word)(struct mtd_info *mtd); |
|
||||||
void (*write_word)(struct mtd_info *mtd, u16 word); |
|
||||||
|
|
||||||
void (*write_buf)(struct mtd_info *mtd, const u_char *buf, int len); |
|
||||||
void (*read_buf)(struct mtd_info *mtd, u_char *buf, int len); |
|
||||||
int (*verify_buf)(struct mtd_info *mtd, const u_char *buf, int len); |
|
||||||
void (*select_chip)(struct mtd_info *mtd, int chip); |
|
||||||
int (*block_bad)(struct mtd_info *mtd, loff_t ofs, int getchip); |
|
||||||
int (*block_markbad)(struct mtd_info *mtd, loff_t ofs); |
|
||||||
void (*hwcontrol)(struct mtd_info *mtd, int cmd); |
|
||||||
int (*dev_ready)(struct mtd_info *mtd); |
|
||||||
void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr); |
|
||||||
int (*waitfunc)(struct mtd_info *mtd, struct nand_chip *this, int state); |
|
||||||
int (*calculate_ecc)(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code); |
|
||||||
int (*correct_data)(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc); |
|
||||||
void (*enable_hwecc)(struct mtd_info *mtd, int mode); |
|
||||||
void (*erase_cmd)(struct mtd_info *mtd, int page); |
|
||||||
int (*scan_bbt)(struct mtd_info *mtd); |
|
||||||
int eccmode; |
|
||||||
int eccsize; |
|
||||||
int eccbytes; |
|
||||||
int eccsteps; |
|
||||||
int chip_delay; |
|
||||||
#if 0 |
|
||||||
spinlock_t chip_lock; |
|
||||||
wait_queue_head_t wq; |
|
||||||
nand_state_t state; |
|
||||||
#endif |
|
||||||
int page_shift; |
|
||||||
int phys_erase_shift; |
|
||||||
int bbt_erase_shift; |
|
||||||
int chip_shift; |
|
||||||
u_char *data_buf; |
|
||||||
u_char *oob_buf; |
|
||||||
int oobdirty; |
|
||||||
u_char *data_poi; |
|
||||||
unsigned int options; |
|
||||||
int badblockpos; |
|
||||||
int numchips; |
|
||||||
unsigned long chipsize; |
|
||||||
int pagemask; |
|
||||||
int pagebuf; |
|
||||||
struct nand_oobinfo *autooob; |
|
||||||
uint8_t *bbt; |
|
||||||
struct nand_bbt_descr *bbt_td; |
|
||||||
struct nand_bbt_descr *bbt_md; |
|
||||||
struct nand_bbt_descr *badblock_pattern; |
|
||||||
struct nand_hw_control *controller; |
|
||||||
void *priv; |
|
||||||
}; |
|
||||||
|
|
||||||
/*
|
|
||||||
* NAND Flash Manufacturer ID Codes |
|
||||||
*/ |
|
||||||
#define NAND_MFR_TOSHIBA 0x98 |
|
||||||
#define NAND_MFR_SAMSUNG 0xec |
|
||||||
#define NAND_MFR_FUJITSU 0x04 |
|
||||||
#define NAND_MFR_NATIONAL 0x8f |
|
||||||
#define NAND_MFR_RENESAS 0x07 |
|
||||||
#define NAND_MFR_STMICRO 0x20 |
|
||||||
|
|
||||||
/**
|
|
||||||
* struct nand_flash_dev - NAND Flash Device ID Structure |
|
||||||
* |
|
||||||
* @name: Identify the device type |
|
||||||
* @id: device ID code |
|
||||||
* @pagesize: Pagesize in bytes. Either 256 or 512 or 0 |
|
||||||
* If the pagesize is 0, then the real pagesize |
|
||||||
* and the eraseize are determined from the |
|
||||||
* extended id bytes in the chip |
|
||||||
* @erasesize: Size of an erase block in the flash device. |
|
||||||
* @chipsize: Total chipsize in Mega Bytes |
|
||||||
* @options: Bitfield to store chip relevant options |
|
||||||
*/ |
|
||||||
struct nand_flash_dev { |
|
||||||
char *name; |
|
||||||
int id; |
|
||||||
unsigned long pagesize; |
|
||||||
unsigned long chipsize; |
|
||||||
unsigned long erasesize; |
|
||||||
unsigned long options; |
|
||||||
}; |
|
||||||
|
|
||||||
/**
|
|
||||||
* struct nand_manufacturers - NAND Flash Manufacturer ID Structure |
|
||||||
* @name: Manufacturer name |
|
||||||
* @id: manufacturer ID code of device. |
|
||||||
*/ |
|
||||||
struct nand_manufacturers { |
|
||||||
int id; |
|
||||||
char * name; |
|
||||||
}; |
|
||||||
|
|
||||||
extern struct nand_flash_dev nand_flash_ids[]; |
|
||||||
extern struct nand_manufacturers nand_manuf_ids[]; |
|
||||||
|
|
||||||
/**
|
|
||||||
* struct nand_bbt_descr - bad block table descriptor |
|
||||||
* @options: options for this descriptor |
|
||||||
* @pages: the page(s) where we find the bbt, used with option BBT_ABSPAGE |
|
||||||
* when bbt is searched, then we store the found bbts pages here. |
|
||||||
* Its an array and supports up to 8 chips now |
|
||||||
* @offs: offset of the pattern in the oob area of the page |
|
||||||
* @veroffs: offset of the bbt version counter in the oob are of the page |
|
||||||
* @version: version read from the bbt page during scan |
|
||||||
* @len: length of the pattern, if 0 no pattern check is performed |
|
||||||
* @maxblocks: maximum number of blocks to search for a bbt. This number of |
|
||||||
* blocks is reserved at the end of the device where the tables are |
|
||||||
* written. |
|
||||||
* @reserved_block_code: if non-0, this pattern denotes a reserved (rather than |
|
||||||
* bad) block in the stored bbt |
|
||||||
* @pattern: pattern to identify bad block table or factory marked good / |
|
||||||
* bad blocks, can be NULL, if len = 0 |
|
||||||
* |
|
||||||
* Descriptor for the bad block table marker and the descriptor for the |
|
||||||
* pattern which identifies good and bad blocks. The assumption is made |
|
||||||
* that the pattern and the version count are always located in the oob area |
|
||||||
* of the first block. |
|
||||||
*/ |
|
||||||
struct nand_bbt_descr { |
|
||||||
int options; |
|
||||||
int pages[NAND_MAX_CHIPS]; |
|
||||||
int offs; |
|
||||||
int veroffs; |
|
||||||
uint8_t version[NAND_MAX_CHIPS]; |
|
||||||
int len; |
|
||||||
int maxblocks; |
|
||||||
int reserved_block_code; |
|
||||||
uint8_t *pattern; |
|
||||||
}; |
|
||||||
|
|
||||||
/* Options for the bad block table descriptors */ |
|
||||||
|
|
||||||
/* The number of bits used per block in the bbt on the device */ |
|
||||||
#define NAND_BBT_NRBITS_MSK 0x0000000F |
|
||||||
#define NAND_BBT_1BIT 0x00000001 |
|
||||||
#define NAND_BBT_2BIT 0x00000002 |
|
||||||
#define NAND_BBT_4BIT 0x00000004 |
|
||||||
#define NAND_BBT_8BIT 0x00000008 |
|
||||||
/* The bad block table is in the last good block of the device */ |
|
||||||
#define NAND_BBT_LASTBLOCK 0x00000010 |
|
||||||
/* The bbt is at the given page, else we must scan for the bbt */ |
|
||||||
#define NAND_BBT_ABSPAGE 0x00000020 |
|
||||||
/* The bbt is at the given page, else we must scan for the bbt */ |
|
||||||
#define NAND_BBT_SEARCH 0x00000040 |
|
||||||
/* bbt is stored per chip on multichip devices */ |
|
||||||
#define NAND_BBT_PERCHIP 0x00000080 |
|
||||||
/* bbt has a version counter at offset veroffs */ |
|
||||||
#define NAND_BBT_VERSION 0x00000100 |
|
||||||
/* Create a bbt if none axists */ |
|
||||||
#define NAND_BBT_CREATE 0x00000200 |
|
||||||
/* Search good / bad pattern through all pages of a block */ |
|
||||||
#define NAND_BBT_SCANALLPAGES 0x00000400 |
|
||||||
/* Scan block empty during good / bad block scan */ |
|
||||||
#define NAND_BBT_SCANEMPTY 0x00000800 |
|
||||||
/* Write bbt if neccecary */ |
|
||||||
#define NAND_BBT_WRITE 0x00001000 |
|
||||||
/* Read and write back block contents when writing bbt */ |
|
||||||
#define NAND_BBT_SAVECONTENT 0x00002000 |
|
||||||
/* Search good / bad pattern on the first and the second page */ |
|
||||||
#define NAND_BBT_SCAN2NDPAGE 0x00004000 |
|
||||||
|
|
||||||
/* The maximum number of blocks to scan for a bbt */ |
|
||||||
#define NAND_BBT_SCAN_MAXBLOCKS 4 |
|
||||||
|
|
||||||
extern int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd); |
|
||||||
extern int nand_update_bbt (struct mtd_info *mtd, loff_t offs); |
|
||||||
extern int nand_default_bbt (struct mtd_info *mtd); |
|
||||||
extern int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt); |
|
||||||
extern int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt); |
|
||||||
|
|
||||||
/*
|
|
||||||
* Constants for oob configuration |
|
||||||
*/ |
|
||||||
#define NAND_SMALL_BADBLOCK_POS 5 |
|
||||||
#define NAND_LARGE_BADBLOCK_POS 0 |
|
||||||
|
|
||||||
#endif /* __LINUX_MTD_NAND_NEW_H */ |
|
Loading…
Reference in new issue